Question

What are the causes of ozone layer depletion?

Answer 1

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Ozone is being depleted by air pollutants. Chlorofluorocarbons (CFCs) are synthetic harmful chemicals which are widely used in refrigerators and air conditioners as propellants. These chlorofluorocarbons are air pollutants and are mainly responsible for the depletion of ozone layer in the atmosphere. When these are released in the air, these harmful chemicals produce active chlorine' (Cl and CIO radicals) and fluroine in the presence of UV radiation. These radicals, through chain reaction, then destroy the ozone by converting it into oxygen. Due to this, the ozone layer in the upper atmosphere (i.e, stratosphere) becomes thinner. A single chlorine atom can destroy one lakh ozone molecules. Cholorofluorocarbons are, therefore, termed major ozone depleting substances (ODS). Other ozone depleting substances are nitrogen oxides and hydrocarbons.

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Answer 2

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Ozone is being depleted by air pollutants. Chlorofluorocarbons (CFCs) are synthetic harmful chemicals which are widely used in refrigerators and air conditioners as propellants. These chlorofluorocarbons are air pollutants and are mainly responsible for the depletion of ozone layer in the atmosphere. When these are released in the air, these harmful chemicals produce active chlorine' (Cl and CIO radicals) and fluroine in the presence of UV radiation. These radicals, through chain reaction, then destroy the ozone by converting it into oxygen. Due to this, the ozone layer in the upper atmosphere (i.e, stratosphere) becomes thinner. A single chlorine atom can destroy one lakh ozone molecules. Cholorofluorocarbons are, therefore, termed major ozone depleting substances (ODS). Other ozone depleting substances are nitrogen oxides and hydrocarbons